2. Catalogue description

The description follows the same order as the catalogue columns.

2.1. LHS

This is the number given by W.J. Luyten (1979). A number followed by an A or B indicates that this star is included in the ADS or IDS catalogues with this suffix.

2.2. Mag

These values should only be used as an indication. Various sources have been used:

- The Centre for Astronomic Data at Strasbourg.
- The Hipparcos Input Catalogue.
- LHS CATALOGUE 1979 for faint stars.
- Bessel's list (1990). In this case, the magnitude is preceded by a "b".
- Rodgers & Eggen's list (1974). In this case, the magnitude is preceded by an "r".

2.3. J2000 position

The definition is the same as that already given [RPG 1996] and [RP 1996]. When several observations are available, we have checked, before calculating the mean of the positions, that the continuation of the individual positions is consistent with the value already known of the proper motion.

2.4. Proper motions, precision, epoch, number of observations

- cos : Proper motion in right ascension (in arcseconds per year)
- : Proper motion in declination (in arcseconds per year)

Various sources were used:

- Positions and Proper Motions (Röser & Bastian 1992).
- Hipparcos Input Catalogue.
- Luyten Half Second Catalogue.

- : Root-mean-square error in right ascension, in arcseconds.
- : Root-mean-square error in declination, in arcseconds

as already defined [RPG 1996] and [RP 1996].

- Ep: Date, to the nearest 0.01 years, of the plate, or the mean date of the observations, if the position is the average of the positions taken from several plates.

- N: Number of plates used on which this star is shown.

- *: If N is followed by "*", see the notes.

2.5. Equivalencies

Several identifiers are given, selected in order of preference from: HD, HIC, PPM, GJ, L, LP, LTT, LFT, BD, CD, CPD, V*, GJ and Ci. These identifiers, in addition to the acronyms ADS and IDS cited in 2.1, have already been individually described [RPG 1996].